Home / 19,135.07-28,697.40-12,104.53

Finding the Fourth Proportional to 19,135.07, 28,697.40 and 12,104.53

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Solution

The fourth proportional to 19,135.07, 28,697.40 and 12,104.53 is: 18,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.07 : 28,697.40 = 12,104.53 : x
  2. Step 2: Convert to fraction form
    19,135.07/28,697.40 = 12,104.53/x
  3. Step 3: Cross multiply
    19,135.07x = 28,697.40 × 12,104.53
  4. Step 4: Simplify right side
    19,135.07x = 347,368,539.22
  5. Step 5: Solve for x
    x = 347,368,539.22/19,135.07
  6. Step 6: Final answer
    x = 18,153.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.